EP 1463338 B1 20090311 - System, method and software for processing a projected image
Title (en)
System, method and software for processing a projected image
Title (de)
System, Verfahren und Software zur Verarbeitung eines projizierten Bildes
Title (fr)
Systeme, procédeéet logiciel de traitement d'une image projetée
Publication
Application
Priority
JP 2003091720 A 20030328
Abstract (en)
[origin: EP1463338A2] To provide an image processing system enabling association of the coordinates of a sensed projected image in a sensing area with the coordinates of the spatial light modulator, a projector is formed of: an image projecting section 190 which projects calibration images; a ratio information generating section 152 which computes a ratio of image signal values or luminance values for each pixel in the sensing area obtained by sensing the calibration images, based on sensed information from a sensor 60 which senses the calibration images, to generate ratio information; an edge point detecting section 154 which searches the ratio information to detect edge points of a sensed projected image for each pixel having a ratio equal to or larger than a predetermined value; a pixel block image information generating section 156 which converts sensed information of an area defined by the detected edge points into pixel block image information representing a ratio of image signal values or luminance values for each pixel block including one or more pixels. <IMAGE>
IPC 8 full level
G03B 21/00 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01); G06K 9/40 (2006.01); G06T 3/00 (2006.01); G06T 5/00 (2006.01); G09G 5/00 (2006.01); G09G 5/02 (2006.01); G09G 5/06 (2006.01); H04N 1/40 (2006.01); H04N 5/74 (2006.01)
CPC (source: EP KR US)
E06B 1/347 (2013.01 - KR); H04N 9/3182 (2013.01 - EP US); H04N 9/3185 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1463338 A2 20040929; EP 1463338 A3 20051026; EP 1463338 B1 20090311; CN 1258287 C 20060531; CN 1535003 A 20041006; DE 602004019831 D1 20090423; JP 2004304265 A 20041028; JP 3690402 B2 20050831; KR 100600913 B1 20060713; KR 20040085005 A 20041007; TW 200425748 A 20041116; TW I238665 B 20050821; US 2004240748 A1 20041202; US 7266240 B2 20070904
DOCDB simple family (application)
EP 04251651 A 20040323; CN 200410007984 A 20040323; DE 602004019831 T 20040323; JP 2003091720 A 20030328; KR 20040020642 A 20040326; TW 93107993 A 20040324; US 80620704 A 20040323